This introductory seminar is aimed at anyone new to audio measurement, specifically loudspeaker testing. It begins with an introduction to the basic design of a loudspeaker, including how a typical loudspeaker works. Various loudspeaker measurements are explained, such as frequency response, distortion, sensitivity, phase/polarity and impedance, and how they might offer indications as to potential defects in a speaker. Typical test configurations for both R&D and end-of-line production test are shown. A complete speaker test is demonstrated, using SoundCheck and our free Loudspeaker complete test sequence. This includes setting up software and hardware, calibrating and configuring the test (e.g. setting pass/fail limits) and a discussion of the results.
Basic Loudspeaker Testing demonstrations include:
- Anatomy of loudspeaker design
- How a loudspeaker works
- Loudspeaker test setup with SoundCheck
- Considerations when testing a loudspeaker in an R&D versus production environment
- Critical measurements like frequency response, sensitivity, phase, polarity, impedance, and distortion
Presenters: Les Quindipan
Duration: 22 Mins
Basic Loudspeaker Testing measurement resources
Complete End-of-Line Speaker Test: This free test sequence performs a full suite of basic measurements for a loudspeaker, featuring our two new perceptual distortion metrics. ePRB, or enhanced Perceptual Rub & Buzz is used to detect and differentiate audible distortion from total distortion. eLP, or enhanced Loose Particles, performs transient distortion measurements even in the presence of background noise.
More about Basic Loudspeaker Measurement
Johan Segeborn’s video “How Does A Speaker Work?” is an excellent reference for loudspeaker behavior.